﻿using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Icinetic.FeedCategorySample.Entities;
using Icinetic.FeedCategorySample.Services;
using Icinetic.FeedCategorySample.Services.Providers;
using Icinetic.FeedCategorySample.Services.Repositories;
using Windows.ApplicationModel;
using Windows.ApplicationModel.Activation;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.System;
using Windows.UI.ApplicationSettings;
using Windows.UI.Popups;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

// The Blank Application template is documented at http://go.microsoft.com/fwlink/?LinkId=234227

namespace Icinetic.FeedCategorySample
{
    /// <summary>
    /// Provides application-specific behavior to supplement the default Application class.
    /// </summary>
    sealed partial class App : Application
    {
        private static string _feedUrl = "http://www.microsoft.com/en-us/news/rss/rssfeed.aspx?ContentType=FeatureStories&Tags=";
        public static string FeedUrl
        {
            get { return _feedUrl; }
            set { _feedUrl = value; }
        }

        /// <summary>
        /// Initializes the singleton application object.  This is the first line of authored code
        /// executed, and as such is the logical equivalent of main() or WinMain().
        /// </summary>
        public App()
        {
            this.InitializeComponent();
            BaseRepository.Initialize();
            this.Suspending += OnSuspending;
        }

        /// <summary>
        /// Invoked when the application is launched normally by the end user.  Other entry points
        /// will be used when the application is launched to open a specific file, to display
        /// search results, and so forth.
        /// </summary>
        /// <param name="args">Details about the launch request and process.</param>
        protected override void OnLaunched(LaunchActivatedEventArgs args)
        {
            // Do not repeat app initialization when already running, just ensure that
            // the window is active
            if (args.PreviousExecutionState == ApplicationExecutionState.Running)
            {
                Window.Current.Activate();
                return;
            }

            if (args.PreviousExecutionState == ApplicationExecutionState.Terminated)
            {
                //TODO: Load state from previously suspended application
            }

            // Create a Frame to act navigation context and navigate to the first page
            var rootFrame = new Frame();
            if (!rootFrame.Navigate(typeof(MainPage)))
            {
                throw new Exception("Failed to create initial page");
            }

            // Place the frame in the current Window and ensure that it is active
            Window.Current.Content = rootFrame;
            Window.Current.Activate();

            //Cache cleaner 'daemon'
            Task task = new Task(() =>
            {
                int seconds = 60;
                do
                {
                    ContentService.CheckRepositoryLimits<RssItem>();
                    new System.Threading.ManualResetEvent(false).WaitOne(seconds * 1000);
                }
                while (true);
            });

            task.Start();

            ResetTiles();

            // Notifícame cuando el usuario abra el panel de Settings
            if (!this.m_settingsReady)
            {
                SettingsPane.GetForCurrentView().CommandsRequested += OnCommandsRequested;
                this.m_settingsReady = true;
            }

            Windows.ApplicationModel.Search.SearchPane.GetForCurrentView().QuerySubmitted +=
                (sender, queryArgs) =>
                {
                    SearchResultsPage.Activate(queryArgs.QueryText);
                };
        }

        // Ya tengo listos los Settings?
        private bool m_settingsReady = false;

        void OnCommandsRequested(SettingsPane settingsPane, SettingsPaneCommandsRequestedEventArgs eventArgs)
        {
            // Preparamos el metodo que se llamará cuando el usuario pulse 
            // en alguno de los Settings
            UICommandInvokedHandler handler = new UICommandInvokedHandler(OnSettingsCommand);

            // Hacemos que las diferentes opciones aparezcan en los Settings

            // Política de privacidad
            SettingsCommand privacyPolicyCommand =
                new SettingsCommand("politicaPrivacidad", "Política de privacidad", handler);
            eventArgs.Request.ApplicationCommands.Add(privacyPolicyCommand);

            // Contacta con nosotros
            SettingsCommand contactUsCommand =
                new SettingsCommand("soporte", "Soporte", handler);
            eventArgs.Request.ApplicationCommands.Add(contactUsCommand);
        }


        async void OnSettingsCommand(IUICommand command)
        {
            // Obtenemos en cuál de los Setting ha pulsado el usuario
            SettingsCommand settingsCommand = (SettingsCommand)command;

            // Según el que haya pulsado hacemos unas cosas u otras
            switch ((string)settingsCommand.Id)
            {
                case "politicaPrivacidad":

                    // Abrimos la página web con nuestra Política de Privacidad 
                    await Launcher.LaunchUriAsync(new Uri(
                        "http://www.icinetic.com/?page_id=2481"));

                    break;

                case "soporte":

                    // Abrimos la página web con nuestra información de contacto
                    await Launcher.LaunchUriAsync(new Uri(
                        "http://www.icinetic.com/?page_id=1261"));

                    break;
            }
        }

        protected override void OnSearchActivated(Windows.ApplicationModel.Activation.SearchActivatedEventArgs args)
        {
            SearchResultsPage.Activate(args.QueryText);

            // TODO: Move the following code to OnLaunched to speed up searches when your
            //       application is already running:

            //Windows.ApplicationModel.Search.SearchPane.GetForCurrentView().QuerySubmitted +=
            //    (sender, queryArgs) =>
            //    {
            //        Icinetic.FeedCategorySample.Views.SearchResultsPage.Activate(queryArgs.QueryText);
            //    };

            // Register handler for CommandsRequested events from the settings pane
            SettingsPane.GetForCurrentView().CommandsRequested += OnCommandsRequested;

        }

        internal static void ResetTiles()
        {
            Windows.UI.Notifications.TileUpdateManager.CreateTileUpdaterForApplication().Clear();
        }

        /// <summary>
        /// Invoked when application execution is being suspended.  Application state is saved
        /// without knowing whether the application will be terminated or resumed with the contents
        /// of memory still intact.
        /// </summary>
        /// <param name="sender">The source of the suspend request.</param>
        /// <param name="e">Details about the suspend request.</param>
        private void OnSuspending(object sender, SuspendingEventArgs e)
        {
            var deferral = e.SuspendingOperation.GetDeferral();
            //TODO: Save application state and stop any background activity
            deferral.Complete();
        }
    }
}
